(19)
(11) EP 1 798 071 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.01.2011 Bulletin 2011/04

(43) Date of publication A2:
20.06.2007 Bulletin 2007/25

(21) Application number: 06125490.0

(22) Date of filing: 06.12.2006
(51) International Patent Classification (IPC): 
B60C 11/24(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 15.12.2005 EP 05292699

(71) Applicants:
  • Société de Technologie Michelin
    63000 Clermont-Ferrand (FR)
  • Michelin Recherche et Technique S.A.
    1763 Granges-Paccot (CH)

(72) Inventor:
  • Myatt, David
    63119, Chateaugay (FR)

(74) Representative: Lasson, Cédric Y. M. 
M. F. P. Michelin 23, place des Carmes Dechaux SGD/LG/PI - F35 - Ladoux
63040 Clermont-Ferrand Cedex 9
63040 Clermont-Ferrand Cedex 9 (FR)

   


(54) Tyre with wear sensor


(57) Tyre comprising a tread and a belt comprising a first (50) and a second ply (60), the first and second plies (50,60) being made up of substantially parallel metallic reinforcing cords (51,61) embedded in a rubber composition that are inclined with respect to the equatorial plane of the tyre, the cords (51) of the first ply (50) being inclined with respect to the cords (61) of the second ply (60), the tyre moreover comprising at least one resonant circuit formed by a plurality of inductances (L) and capacities (C) and at least one dipolar electric element (101,102,103) connecting capacities (C) of the resonant circuit and extending into the part of the tread (10) that can be worn away before reaching the tread wear limit, such that at least one characteristic of the dipolar electric element is modified as a consequence of tyre wear before or when the tread wear limit is reached, wherein the resonant circuit is formed by elements of the belt of the tyre.







Search report